ermold



2' Shets-Shet 1-. G. ERMO LD. TONSILOTOME.

(No Model.)

No. 534,433. Patented Feb. 19,1895.

WITNESSES.

(No Model.) -2.'8heets-Sheet-2;

G. ERMOLD.

TONSILOTOME.

No. 584,433. Patented Feb. 19, 1895.

(Kb 2 W NW Z lNVE/V 0/? W ATTORNEYS.

NITED STATES T PATENT OFFICE.

GEORGE ERMOLD, OF NEW YORK, N. Y.

'SI'ONAISILOTOME.

SPECIFICATION forming part of Letters Patent No. 534,433, dated February 19, 1895. Application filed March 10, 1894. Serial No. 603,115. 7 (No model.)

To all whom it may concern.-

Be it known that I, GEORGE ERMOLD, a citizen of the United States of America, residing at New York, in the county and State of New York, have invented certain new and useful Improvements in Tonsilotomes, of which the following is a specification.

The object of this invention is to supply an improved tonsilotome which is composed'of three. main parts only that are connected in such a manner that they can be readily taken apart for being cleaned with a suitable antiseptic solution, and then readily put together, the parts being so combined that the very effective working of theinstrument and a considerably simplified construction are obtained as compared with the original Mathieu tonsilotome, which is composed of four main parts that are so constructed and connected that they cannot effectively be cleaned with an antiseptic solution. I

My invention consists principally of a tonsilotome consisting of three plain members,

ters that are sharpened at opposite edges, so

as to effect the cutting 0d of the tonsils after the fork has been pushed into them.

The invention furtherconsists of the different means for guiding and connecting the parts, so that they are readily detachable, as will be fully described hereinafter.

In the accompanying drawings, Figure 1 represents a top view of my improved tonsilotome. Fig. 2 represents a side elevation thereof. Fig. 3 represents a top view showing the tonsilotome in position after the cutting off of the tonsils is accomplished. Fig. 4. represents a side elevation of Fig. 3. Fig. 5 represents a top view showing the fork in position for being detached from the stationary and sliding members. Fig. 6 represents a plan view showing the stationary member and the sliding member at right angles thereto, in the act of being removed from the former. Fig. 7 represents a vertical longitudinal section on line 7-7 of Fig. 3 of the actuating parts, and Figs. 8, 9, 10 and 11 are vertical transverse sections respectively on lines 88, Fig. 7, 9-9, Fig. 2, 1010, Fig. 4, and 1-l.ll, Fig. 5.

Similar letters of reference indicate corre-. sponding parts in all the figures.

Referring to the drawings A represents the stationary member, B the sliding member, and O the fork of my improved tonsilotome.

The stationary member A is provided at one end with a raised guide piece a. that extends at right angles thereto, and at the opposite end with a loop-shaped cutter A that is provided with a sharpened edge a at the inner side of the opening thereof. On the shank of the stationary member is arranged a fixed stud a having a T-head a and also a pin a which is located near the recessed guide lug a.

The T-head a of the fixed stud a serves to retain the .sliding member B which is applied through the medium of a slot b, said sliding member being also provided with a loop-shaped cutter B that overlaps the loopshaped cutter of the stationary member A. The loop-shaped cutter B is sharpened at the edge 1) of the opening thereof opposite-to the sharpened inner edge of the loop-shaped cutter A of the base member A, asshown clearly in Fig. 7. The opposite end of the sliding member is beveled off at B and provided with a hole I) in the beveled portion, which hole receives the pin a when the sliding member B is in position on the stationary member A.

When the perforated end of the sliding member B is released from the pin a the sliding member can be guided by the headedpin a. of the stationary member and moved in the direction of the longitudinal axis of the instrument over the stationary member and cause the sliding of the loop-shaped cutter Hover the loop-shaped cutter A. A slight bend is imparted to the sliding member-B, so that a spring action is exerted at its ends on the stationary member A. The sliding member B is further provided at the middle of its shank with a recessed guidelug or keeper b the opening thereof being in line with the recessed guide lug a on the stationary member, the guide lugs b and a, serving to guide the shank of the fork C, the forked end of which is adjacent to the loop-shaped cutters of the stationary and sliding members A and B.

The sliding member B has laterally projecting ring-shaped handles h, h, through which the fingers of the hand are introduced, while the shank of the fork is provided at its outer end with a handle 0 for taking hold of the same. The shank of the fork O is provided near its handle with notches d, d, at opposite sides thereof, another set of notches cl being provided at some distance from the forked end, said notched portions permitting the introduction of the shank of the fork G into the guide lugs b and a. To the shank of the fork C is further applied, in front of the notches d, a downwardly extending U shaped catch 6, the open portion of which is adapted to pass beyond the pin a, so that the ends of the catch engage the beveled end B of the sliding member B and lift it out of engagement with the pin 0. so that-it can he slid in backward or forward direction over the stationary member A. The shank C is made thinner at the portion 0 adjacent to the forked end to give a spring action to the forward end of the fork. The under side of the butt of the fork is made tapering, as shown in Fig. 7, which adapts it to pass over a fixed beveled or wedge-shaped lug f, that is disposed near the loop-shaped cutter B of the sliding member. The beveled lug f serves to guide the tines of the fork C until the butt thereof bears on the lug f. The fork is then made to rise as the butt passes over the lug. This rising of the fork is permitted by its thinner springy part 0 The shank of the fork is further provided near the notches d, d, with a screw stop g, having a milled head g, the threaded portion thereof screwing into a correspondingly threaded hole 9 of the shank C so that the screw can be raised or lowered. In its lower position the screw forms a stop which when it abuts against the guide lug a arrests the backward motion of the fork, as shown in Fig. 2. The forward motion of the fork is arrested by the collar of its handle 0'.

The operation of my improved tonsilotome is as follows: During the cutting action of the loop-shaped cutters A and B, the tonsil is held in position by the fork O, which is first inserted into the tonsil by being moved in forward direction in the guide lugs h a, of the stationary and sliding members so as to assume the position shown in Fig. 3, in which figure the second position of the sliding member is also shown. After the cutting action is accomplished, the fork is drawn back and the sliding member moved forward again, so that the loop-shaped cutters overlap each other. By the arrangement of the beveled lug b at the loop-shaped cutter of the sliding member, the fork, after entering the tonsil, is lifted thereby and the tonsil is drawn forward at the same time and placed in a more favorable position for the cutting action of the loopshaped cutters of the stationary and sliding members.

After use the parts of the tonsilotome are detached by raising the screw-stop g so that it can clear the guide lug (1. until the notches d arein line with the guide lug a. The shank C can then be detached from the guide-lug. Simultaneously the notches d are placed in line with the keeper 19 so that the fork can be readily removed from the lower members. The sliding member B is then lifted so that its perforated end is released from the pine on the stationary member A, and it can be turned on the headed pin 0. until the shank is at right angles to the shank of the stationary member, as shown in Fig. 6, in which position the T-head of the pin is in line with the slot b, so that the members A and B can be readily detached from each other. Each part can then be conveniently cleaned by means of antiseptics, there being no parts which cannot be readily reached for cleaning.

After the three members of the instrument are cleaned, the parts are connected again by replacing the sliding member on the stationary member and placing the shank of the fork in position on the keepers of the stationary and sliding members, and screwing down the headed screw-stop g by which the shank of the fork is retained in the guide lugs of the lower parts.

The advantages of my improved tonsilotome are first, that it. is composed of only three parts which can be readily detached from each other or put together again; secondly, that the three parts of the instrument can be easily cleaned, as access is given to every portion thereof.

I claim as my invention-- 1. In a tonsilotome, the combination of a stationary member, a sliding member adapted to slide on said stationary member, said members having loop-shaped cutters at their outer ends, one of said members having an integral beveled lug adjacent to its cutter, and a fork adapted to slide on said-members and having a solid shank adapted to ride on said bev eled lug.

2. In a tonsilotome, the combination of two members, one adapted to slide onthe other and having cutters at their outer ends, one of said members being shorter than the other, theshort member having a beveled and perforated inner end, and the long member having a fixed stud engaging said perforated beveled end, and a fork sliding on said members and provided with a keeper for engaging said beveled end.

3. In a tonsilotome, the combination of a stationary member having a loop-shaped cutter at one end, a recessed lugat the other end, a T-headed stud near the loop-shaped cutter IIC and a stud near the recessed lug, a sliding member having a loop-shaped cutter at one end, an integral beveled lug adjacent thereto, alongitudinal slot for engaging said T-headed stud, a recessed lug, and a handle, the inner end of said member being beveled, and a fork sliding in said recessed lugs and having a solid shank engaging said beveled lug of the slidingmember and provided with aU -shaped keeper engaging the beveled end of the slid- 1o ing member.

In testimony that I claim the foregoing as my invention I have signed my name in presence of two subscribing witnesses. t

GEORGE ERMOLD.

Witnesses:

PAUL GoEPEL, K. BRENNAN. 

